package com.project.security.component;

import cn.hutool.core.collection.CollUtil;
import org.springframework.security.access.AccessDecisionManager;
import org.springframework.security.access.AccessDeniedException;
import org.springframework.security.access.ConfigAttribute;
import org.springframework.security.authentication.InsufficientAuthenticationException;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.GrantedAuthority;

import java.util.Collection;
import java.util.Iterator;

/**
 * 动态权限决策管理器，用于判断用户是否有访问权限、
 */
public class DynamicAccessDecisionManager implements AccessDecisionManager {

    @Override
    public void decide(Authentication authentication, Object object,
                       Collection<ConfigAttribute> configAttributes) throws AccessDeniedException, InsufficientAuthenticationException {
        // 当接口未被配置资源时直接放行
        return;
//        if (CollUtil.isEmpty(configAttributes)) {
//            return;
//        }
//        for (ConfigAttribute configAttribute : configAttributes) {
//            //将访问所需资源或用户拥有资源进行比对
//            String needAuthority = configAttribute.getAttribute();
//            for (GrantedAuthority grantedAuthority : authentication.getAuthorities()) {
//                if (needAuthority.trim().equals(grantedAuthority.getAuthority())) {
//                    return;
//                }
//            }
//        }
//        throw new AccessDeniedException("抱歉，您没有访问权限");
    }

    @Override
    public boolean supports(ConfigAttribute configAttribute) {
        return true;
    }

    @Override
    public boolean supports(Class<?> aClass) {
        return true;
    }

}
